I would guess some files are left open when grub_util_pull_lvm_by_command() calls grub_util_exec_pipe() in grub2/grub-core/osdep/unix/getroot.c
I would guess some files are left open when grub_util_ pull_lvm_ by_command( ) calls grub_util_ exec_pipe( ) in grub2/grub- core/osdep/ unix/getroot. c